Book ChapterDOI
Heterocyclic Thiazyl and Selenazyl Radicals; Synthesis and Applications in Solid State Architecture
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TLDR
A wide range of heterocyclic sulfur-nitrogen and seleniumnitrogen radicals have been characterized in recent years as discussed by the authors, and the potential use of these radicals as building blocks for low-dimensional molecular conductors is outlined.Abstract:
A wide range of heterocyclic sulfur-nitrogen and selenium-nitrogen radicals have been characterized in recent years. Synthetic routes to these materials are summarized, and the modes of association which they exhibit in the solid state are illustrated. The potential use of these radicals as building blocks for low-dimensional molecular conductors is outlined, and some strategies for generating specific solid state architectures are explored. Recent attempts to prepare conductive materials from custom-built bifunctional 1, 2, 3, 5-dithia- and diselenadiazolyls are described.read more
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Journal ArticleDOI
Experimental and Theoretical Investigations of the Formation of the Diazene PhSN=C(H)N=NC(H)=NSPh from HCN(2)(SPh)(3) by a Thiyl-Radical-Catalyzed Mechanism: Identification of the HC(NSPh)(2)(*) Radical and X-ray Structures of HCN(2)(SPh)(3) and PhSN=C(H)N=NC(H)=NSPh.
TL;DR: Thermochemical calculations indicate that the decomposition of HCN(2)(SH)(3) into the diazene (Z,E,Z)-HSN=C(H)N=NC(H)=NSH (and 2 HSSH) is substantially more exothermic than the corresponding formation of the isomeric eight-membered ring (HC)(2)N(4)(SH).
Journal ArticleDOI
Non-Innocent Base Properties of 3- and 4-Pyridyl-dithia- and Diselenadiazolyl Radicals: The Effect of N-Methylation.
Anni I. Taponen,Joanne W. L. Wong,Kristina Lekin,Abdeljalil Assoud,Craig M. Robertson,Manu Lahtinen,Rodolphe Clérac,Rodolphe Clérac,Heikki M. Tuononen,Aaron Mailman,Aaron Mailman,Richard T. Oakley +11 more
TL;DR: Variable temperature magnetic susceptibility measurements on both the neutral and radical ion dimers indicate that they are diamagnetic over the temperature range 2-300 K.
Journal ArticleDOI
Electronic Excitation of the 1,2,3,5-Dithiadiazolyl Radical. A Spectroscopic and Theoretical Analysis.
Jennifer Campbell,Dieter Klapstein,Peter F. Bernath,William M. Davis,Richard T. Oakley,John D. Goddard +5 more
TL;DR: The 1,2,3,5-dithiadiazolyl radical [HCN2S2] has a broad visible and near-infrared electronic transition spanning the 12’000−18 000 cm-1 region and on the basis of ab initio molecular orbital calculati...
Journal ArticleDOI
1,2,4,6-thiatriazinyls: stable free radicals with well-defined epr spectra
René T. Boeré,Tracey L. Roemmele +1 more
TL;DR: In this paper, the EPR spectra of six 1,2,4,6-thiatriazinyls have been redetermined and simulated using modern computer simulation programs, and the hyperfine coupling (hfc) constants determined from the simulations differ in some cases significantly from those reported previously.
References
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The difference between metallic and insulating salts of tetracyanoquinodimethone (TCNQ): how to design an organic metal
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Superconductivity in Polysulfur Nitride ( SN ) X
TL;DR: The inorganic crystalline polymer polysulfur nitride has been found to become superconducting with a transition temperature of (0.26, 0.03) K as mentioned in this paper.
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From organic metals to superconductors: managing conduction electrons in organic solids
TL;DR: In this paper, the conduction of electricity in organic solids, especially the parameters required for metallic electron flow and the phenomena responsible for its permanent interruption or perpetual flow are discussed in detail.
Journal ArticleDOI
Design of organic metals and superconductors
TL;DR: In this article, the potential of odd alternant hydrocarbons (OAHs) in the design of organic metals and superconductors was discussed, which gives reason to suppose that they may prove equal or even superior to present systems.